Evidence row 408813

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://hn.genexxis.com/item"
    ]
  ],
  "name": "hn.genexxis.com/item",
  "owner_address": "0x9287e3102d411029025c7617d75245bfc7920f17",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9287e3102D411029025C7617d75245BFc7920f17",
        "scheme": "exact"
      }
    ],
    "description": "One Hacker News story (or comment) by id with up to 30 top-level comments: author, time, plain text up to 500 characters and reply count.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "id": "8863"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "comments": [
                {
                  "author": "BrandonM",
                  "created": "2007-04-05T15:16:54.000Z",
                  "id": 9224,
                  "points": null,
                  "replies": 4,
                  "text": "I have a few qualms with this app..."
                }
              ],
              "count": 15,
              "item": {
                "author": "dhouston",
                "comments": 71,
                "created": "2007-04-04T19:16:40.000Z",
                "domain": "getdropbox.com",
                "hnUrl": "https://news.ycombinator.com/item?id=8863",
                "id": 8863,
                "points": 104,
                "title": "My YC app: Dropbox - Throw away your USB drive",
                "type": "story",
                "url": "http://www.getdropbox.com/u/2/screencast.html"
              },
              "topLevelComments": 15
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "id": {
                      "description": "Numeric Hacker News item id",
                      "type": "string"
                    },
                    "maxComments": {
                      "description": "1-30, default 30",
                      "type": "string"
                    }
                  },
                  "required": [
                    "id"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "lastUpdated": "2026-10-27T01:33:40.072Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-26T10:29:08.421Z"
    },
    "resource": "https://hn.genexxis.com/item",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "One Hacker News story (or comment) by id with up to 30 top-level comments: author, time, plain text up to 500 characters and reply count."
}

What the leaf hashes

{"body":"30a9261baaaf252940db47e61d9dda440388debceb4703f6bebf89df3210d8b9","id":408813,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080325161998,"prev":55171,"subject":"x402_bazaar:https://hn.genexxis.com/item","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x8964f404c0357695546f1629b5f2dcd302f7c7a48fd78f9756536b50d34330dd
2. 0x51e5ef6d8ce219b2f7d2b678f938ae1f297b9da4d55018ecabeacf053dbee970
3. 0x6acef849b1ae86db4489bb8083b983f50c81a19a0bfb08e1c2657d8653abe1a1
4. 0x20dc65ead646cc2c2c7da8540bcd1c425e69a689a83c74200b8205a668af2de1
5. 0x89ae852ae5ea2ae1675a92c60dfea449a73c6ccb54fd77826ac78197fe3304a5
6. 0x48c3f38be146b194f753b3daf63f17d95d6a05bde60176beb655dda6095269dc
7. 0x499eedf2ba401487060839728ec5ec86326df19fe515f2d8bf20d44e3f74ce59
8. 0x41c5644e00a8e5ea9faefbf4ef309c31ffbff2849fd02cc16100e691b6ef61b2
9. 0xe4858aba1a4e044dc3b2a1021d162c4504031d7908c535efb975c385f5394d19
10. 0x74b456622b05e6bd0b4cc5e19d26f3a5df384097a0fcf42f4c8fc6f450f93956
11. 0xdd2d5eb9439a8e113d9cd2e4e8f0db73acb9a788d06262344864a0cbb291f3ae
12. 0x30c799f301803795a41119ff9181a1ecb65705ab464b7ef061de2b33772eca73
13. 0x6251e2be57e8d16b82579481d181c265d75096882014489550b74a728741f2f1
14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4